When do they usually announce the new weapon refinery?

At the end. Bec theyre always "early next month you can get special refines for...."

I want to know , too. 290 Divine dew and in waiting or i Will spend with my -atk+hp Minerva, cause she deeply needs.
If someone Will have refine, i can wait.

I just hope all the refinement are good instead of having one that is far serperior over the other..... I would say "Alfonse I'm looking at you" but that TA on it is crap and you are better off with Atk or Def refinement